Seems that Dell laptops have nothing better to do than explode.
Well, my Dell desktop was running quite hot for over a year. Many people found that their Dimension 4700 pcs were pushing the air in, instead of sucking it out of the case, lack of an official word from Dell, just spurred the discussions whether it is an error or a feature. Finally last month I found a quasi-official word on a Dell forum, that indeed, there was a batch of pcs, with reversed fans, but no, they didn’t have any cases of hardware fault due to that.

So I popped out the fan, changed the direction and put it back in. It took less than 10 minutes. A Dell technician wouldn’t have spent much more, were they to make a recall. After that, the disk temperature dropped by over 10C, but pc has become noisier. Before, my disk was working at 55-56C - close to the max. operating 60C, yet still in range. Nothing exploded, nothing has melted nor burnt. And who could prove such long-term consequences, like a possibly reduced lifetime of a disk running at 56C as compared with one running at 43C? Obviously, it is better to play dumb, and wait, hoping that nothing happens. That’s called trust…